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.\" ========================================================================
.\"
.IX Title "OCSP_RESP_FIND_STATUS 3"
.TH OCSP_RESP_FIND_STATUS 3 "2017-05-25" "1.1.0f" "OpenSSL"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
OCSP_resp_get0_certs,
OCSP_resp_get0_id,
OCSP_resp_get0_produced_at,
OCSP_resp_find_status, OCSP_resp_count, OCSP_resp_get0, OCSP_resp_find,
OCSP_single_get0_status, OCSP_check_validity
\&\- OCSP response utility functions
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ocsp.h>
\&
\& int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
\& int *reason,
\& ASN1_GENERALIZEDTIME **revtime,
\& ASN1_GENERALIZEDTIME **thisupd,
\& ASN1_GENERALIZEDTIME **nextupd);
\&
\& int OCSP_resp_count(OCSP_BASICRESP *bs);
\& OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx);
\& int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last);
\& int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
\& ASN1_GENERALIZEDTIME **revtime,
\& ASN1_GENERALIZEDTIME **thisupd,
\& ASN1_GENERALIZEDTIME **nextupd);
\&
\& const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(
\& const OCSP_BASICRESP* single);
\&
\& const STACK_OF(X509) *OCSP_resp_get0_certs(const OCSP_BASICRESP *bs);
\&
\& int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
\& const ASN1_OCTET_STRING **pid,
\& const X509_NAME **pname);
\&
\& int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
\& ASN1_GENERALIZEDTIME *nextupd,
\& long sec, long maxsec);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fIOCSP_resp_find_status()\fR searches \fBbs\fR for an \s-1OCSP\s0 response for \fBid\fR. If it is
successful the fields of the response are returned in \fB*status\fR, \fB*reason\fR,
\&\fB*revtime\fR, \fB*thisupd\fR and \fB*nextupd\fR. The \fB*status\fR value will be one of
\&\fBV_OCSP_CERTSTATUS_GOOD\fR, \fBV_OCSP_CERTSTATUS_REVOKED\fR or
\&\fBV_OCSP_CERTSTATUS_UNKNOWN\fR. The \fB*reason\fR and \fB*revtime\fR fields are only
set if the status is \fBV_OCSP_CERTSTATUS_REVOKED\fR. If set the \fB*reason\fR field
will be set to the revocation reason which will be one of
\&\fB\s-1OCSP_REVOKED_STATUS_NOSTATUS\s0\fR, \fB\s-1OCSP_REVOKED_STATUS_UNSPECIFIED\s0\fR,
\&\fB\s-1OCSP_REVOKED_STATUS_KEYCOMPROMISE\s0\fR, \fB\s-1OCSP_REVOKED_STATUS_CACOMPROMISE\s0\fR,
\&\fB\s-1OCSP_REVOKED_STATUS_AFFILIATIONCHANGED\s0\fR, \fB\s-1OCSP_REVOKED_STATUS_SUPERSEDED\s0\fR,
\&\fB\s-1OCSP_REVOKED_STATUS_CESSATIONOFOPERATION\s0\fR,
\&\fB\s-1OCSP_REVOKED_STATUS_CERTIFICATEHOLD\s0\fR or \fB\s-1OCSP_REVOKED_STATUS_REMOVEFROMCRL\s0\fR.
.PP
\&\fIOCSP_resp_count()\fR returns the number of \fB\s-1OCSP_SINGLERESP\s0\fR structures in \fBbs\fR.
.PP
\&\fIOCSP_resp_get0()\fR returns the \fB\s-1OCSP_SINGLERESP\s0\fR structure in \fBbs\fR
corresponding to index \fBidx\fR. Where \fBidx\fR runs from 0 to
OCSP_resp_count(bs) \- 1.
.PP
\&\fIOCSP_resp_find()\fR searches \fBbs\fR for \fBid\fR and returns the index of the first
matching entry after \fBlast\fR or starting from the beginning if \fBlast\fR is \-1.
.PP
\&\fIOCSP_single_get0_status()\fR extracts the fields of \fBsingle\fR in \fB*reason\fR,
\&\fB*revtime\fR, \fB*thisupd\fR and \fB*nextupd\fR.
.PP
\&\fIOCSP_resp_get0_produced_at()\fR extracts the \fBproducedAt\fR field from the
single response \fBbs\fR.
.PP
\&\fIOCSP_resp_get0_certs()\fR returns any certificates included in \fBbs\fR.
.PP
\&\fIOCSP_resp_get0_id()\fR gets the responder id of <bs>. If the responder \s-1ID\s0 is
a name then <*pname> is set to the name and \fB*pid\fR is set to \s-1NULL.\s0 If the
responder \s-1ID\s0 is by key \s-1ID\s0 then \fB*pid\fR is set to the key \s-1ID\s0 and \fB*pname\fR
is set to \s-1NULL.\s0
.PP
\&\fIOCSP_check_validity()\fR checks the validity of \fBthisupd\fR and \fBnextupd\fR values
which will be typically obtained from \fIOCSP_resp_find_status()\fR or
\&\fIOCSP_single_get0_status()\fR. If \fBsec\fR is non-zero it indicates how many seconds
leeway should be allowed in the check. If \fBmaxsec\fR is positive it indicates
the maximum age of \fBthisupd\fR in seconds.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fIOCSP_resp_find_status()\fR returns 1 if \fBid\fR is found in \fBbs\fR and 0 otherwise.
.PP
\&\fIOCSP_resp_count()\fR returns the total number of \fB\s-1OCSP_SINGLERESP\s0\fR fields in
\&\fBbs\fR.
.PP
\&\fIOCSP_resp_get0()\fR returns a pointer to an \fB\s-1OCSP_SINGLERESP\s0\fR structure or
\&\fB\s-1NULL\s0\fR if \fBidx\fR is out of range.
.PP
\&\fIOCSP_resp_find()\fR returns the index of \fBid\fR in \fBbs\fR (which may be 0) or \-1 if
\&\fBid\fR was not found.
.PP
\&\fIOCSP_single_get0_status()\fR returns the status of \fBsingle\fR or \-1 if an error
occurred.
.SH "NOTES"
.IX Header "NOTES"
Applications will typically call \fIOCSP_resp_find_status()\fR using the certificate
\&\s-1ID\s0 of interest and then check its validity using \fIOCSP_check_validity()\fR. They
can then take appropriate action based on the status of the certificate.
.PP
An \s-1OCSP\s0 response for a certificate contains \fBthisUpdate\fR and \fBnextUpdate\fR
fields. Normally the current time should be between these two values. To
account for clock skew the \fBmaxsec\fR field can be set to non-zero in
\&\fIOCSP_check_validity()\fR. Some responders do not set the \fBnextUpdate\fR field, this
would otherwise mean an ancient response would be considered valid: the
\&\fBmaxsec\fR parameter to \fIOCSP_check_validity()\fR can be used to limit the permitted
age of responses.
.PP
The values written to \fB*revtime\fR, \fB*thisupd\fR and \fB*nextupd\fR by
\&\fIOCSP_resp_find_status()\fR and \fIOCSP_single_get0_status()\fR are internal pointers
which \fB\s-1MUST NOT\s0\fR be freed up by the calling application. Any or all of these
parameters can be set to \s-1NULL\s0 if their value is not required.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIcrypto\fR\|(3),
\&\fIOCSP_cert_to_id\fR\|(3),
\&\fIOCSP_request_add1_nonce\fR\|(3),
\&\fIOCSP_REQUEST_new\fR\|(3),
\&\fIOCSP_response_status\fR\|(3),
\&\fIOCSP_sendreq_new\fR\|(3)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2015\-2016 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.